Carbureter.



No. 817,641. PATENTED APB.. 10, 1906.`

G. B. HARRIS. GARBURBTER. APPLICATION FILED Novfls. 19o4.

srarns UNITE rarna'r orrion.

COLEMAN B. HARRIS, OF- WILMINGTON DELAWARE.

'CARBURETER.

Specification of Letters Patent.

Patented April 1o, 190e.

Application and November 18,1904. serai No. 233,328.

To @ZZ whom t may concern:

Be it`known that I, COLEMAN B. HARRIS, a citizen of the United States,residing in Vilmington, Delaware, have inventedV certain Improvements inOarbureters, of which the following is a specification.

One object ofinvention is to provide a controlling the ilow andvaporization of liquid fuel during its passage from a source of supplyto the cylinder of the engine in which it is utilized.

More particularly it is'desired to provide a carbureter with a. devicefor directing the current 'of air flowing through it so that saidcurrent is caused to quickly take up or vaporize liquid fuel both as itis delivered from ay tube, technically known as a stand-pipe, and aftersuchliquid has flowed into the lower portion of the mainconducting-tube.

I further desire to provide a carbureter with a convenientlymanipulateddevice for quickly admitting a relatively large body of liquid fuel intothe vaporiZing-tube, so as to avoid the necessity of disturbing theadjustment of the main fuel-regulating valve.

These objects, together with other adva`ntageous results, I attain ashereinafter set forth, reference being had to the accompanying drawings,in whiche- Figure l is an end elevation, partly in section, of myimproved carburcter, illustrating the detail construction of the primingand regulating valves; andFig. 2 is a transverse sectional elevationtaken on the line 2 2, Fig. i, and further illustrating the constructionof my device. l

in the above drawings it will be noted that a. Moat-chamber A and avaporizing tube or y conduit B are 'formed as parts oi a single casting,there being an extension a -irom said chamber lying under the tube, withthe inte-y ilior oi which it communicates through a conduit b, known asa stand-pipe,7 and placed in an inclined position within thevaporizingtube. The iloat-chamber is provided with a bonnet or cap uf,having a llanged inlet-pipe. u2, and held to the main casting byscrew-s, as shown. A conduit c3, connected to any source'oi supply forliquid fuel, is normally held-in connection with the pipe a2 by means ofa yoke-piece a", whose arms extend under the ilanged portion of saidparts ft2, it being possible to tighten said yoke in position so as tomake a liquid tight joint between the pipes a2 and (1.3 by means of ascrew a5 of the well-known construction.

Within the casting forming the cover a/ is a normally open valve, (notshown,) from which a stem' a6 extends into the float-chamber. Projecting upwardly from the bottoni of said chamber is a guide-stem a7, onwhich operates a float as, so placed as to engage the stern a whenraised to a predetermined height.

A valve bf is carried by a threaded spindle b2 in such manner as toclose the upper end of the stand-pipe b when the milled head b3 of saidspindlehas been properly turned, there being a' pointer or indicator' cfastened to the main casting of the carbureter, which may be made toshow the amount of opening of said valve b. Projecting downwardly fromthe top of the vaporizing-tube B and inclined toward the exit end-ofsaid tube is a deilector D, so placed as to cause a current of airilo\v.

tension a of the iioat-chamber, in which is placed a normally closedpriming-valve e, carried upon a spindle E, extending tlnougli thevaporizing-tube and having a head e eX- tending above the same. Saidvalve is pressed to its seat by a spring e2, which may be inspected orremoved through the opening in the bottom of the extension c of theiloat-chamber by removing a screw-plug e. A blow-oli or try-cock F isalso placed in communication with the bottom or lowest portion ol' thevaporiZing-tube B.

Under operating conditions it will be understood that the pipe. u. isconnected to a source oll supply l'or liquid fuelfwhile the end of thevaporizing-tube adjacent to the priming-valve e is connected to a sourceof supply for air and the opposite end of said tu e is connected to thee1igine-cylinder. Since the valve attached to the stem a. is normallyopen, liquid fuel will How into the float-cham- IOO and pass into theextension a thereof and into theistandwjipe i) until it rises to such alevel as to cause the lfloat as to engage and raise the Valve-stern c,thereby closing the Valve attached to said lstem' in the Welllrnow'nmanner; Since this valve fornire no part of the 'present invention, .itis not 'illustrated in detail. .'lf a current ci air is caused to flowthrough the vaporizing-tulneand thev ilel naturallyhas a tendency toaccumulate,

lhave found thatthe "Vaporization ot said hiel is greatlyiacilitatedgfjvith the result that more' satisfactory and efficientoperation ci the cnice is secure VUpon starting the engineit Will ofcourse be understood that the '.tlow ci liquid from the stand ipe isrelatively slow, and in order to quickly obtain in the ufanorizingftubea relatively lar fe quantity ci fuel ,l open the primingwalve e oydepressing theheadv e', thus perinittine' liquid to 'flow direct-ly fromthe iioat-'chamer into said -rap mining-tube. l/Vhen for anT reason itis desiredto ascertain. if there is a supply of fuel in thevsporizingtuhe, this may be determined 'floffflopening the tryoooli F.

I claim as my invention- 15 A carburetor including a substantially.h'orzonta'l conduit connected to a source of air-'sup ly and havingmeans for the admissionoi" i iquid fuel, with a deiiecting-'partitioninthe conduit for directing the current of air toward thebottom of saidconduit and causingk it to taire up liuid fuel therein., and apriming-valve in. ad ition to said fuel-admis sion means, substantiallyTdescribed.

2. A carburetor including a substantially horizontalY conduit connectedto a source ol' air-supplv and having nieans for the admis sion ofliquid fuel, a partition extending across vthe upper part of the conduitand inclined inthe direction ci' iiow of the air, for directing said.ilow toward thehottoin of the conduit and causing it to take up liquidjfuel therein, and a priming-valve in addition. to said hiehadmissionineens placed to permit entrance of fuel to the conduit, substantiallyas described.'

3. A carbureter including a substantially 'horizontal conduit connectedto source of aii'esupply, a tube connected to a source of supply forliquid fuel and 'projecting into said conduit,I a partition extendingacross the upper portion of the conduit, said tube and said partition.being both inclined in the direction ofiiowol1 the air, the partitionserving to direet the air toward the hott-om of the conduit v l er. r,

andcausin it to talre up liquid l'uel therein, substantially asdescribed.

4. The combination ol a container for liq uid 'fuehwith a conduitconnected to a source of lhielp-surgiply, a supnly-pipe connecting saidcontainer and saidv conduit, a Valve for controllingjthe 'dow o1c liquidto said pipe, with a normally closed primingwalve between the containerand the tconouit, for open: g said ifalveat will, substantially asdescribed.

5. `rlhe coinhination in a carbureter of a container tor liquid uel, aconduit connected to a source of air-supply having a Valve-con Vtrolledpassa n je 'between it and said container, a priniin r-Va ve operativein an opening connecting tlie container and vthe conduit, spindleextendingA through the conduit and attached to sain Valve, Wherehjf thevalve may he moved; and a spring normally inaintoin'- ing said 'Valve ina closed position, suhstantially as described..

6. A carhureter consisting of a single casting having a sul stantiallyhorizontal conduit tor connection to a source of airf-supplgtand achamber extendingl adjacent to said conduit,

'a float, and means coacting therewith for controlling,- the quantity'of liquid in said chainber, a pine proiecting into the conduit, said.pipe being in connection withthe 'rloat-cha1n ber and provided with. aValve whereby the flow ci liquid into the conduit may he controlled, anda deliecting-partition extending across the upper portion ci the conduitlfor dirooting the air-ilow toward the bottoni there of, substantiallyas described.

7. A carburetor' including` a single lcasting having a conduit forconnection to a source of air-supply and a chamber having Within it afloat, said chamber extending adjacent tothe conduit and having anopeningthereinto, a normally closed 'priming-valve for said opere ingrand means whereby' it may be operated at will, there being asilpply-pztssage Ybetween the float-chamber andthe conduit, and meansfor regulating the llow of liquid therefrom into the conduit,substantially as described.

8. A carbureter including` a casting; having a tubular portion andrelatively large chamber having extension projecting under said tubularportion, there being two openings from said extension of the chamberinto the tubular portion, a 4head ed spindle c2c tending through thetubular portion. and having a valve operative in one of said openings,means for maintaining said 'valve in a norinally closed position, and athreaded spindle projecting into the tubular port-ion and operati've tocontrol the Elow or' liquidi'rorn the second openin, suostantiallj;v asdescribed.

9. The combination of a structure having a chamber for a float and aconduit for connec* tion tc c source'o sir-supply, a niain'regulat.-

IOO

IIO,

IPJO

ing-valve between the Conduit and Jrghe cham- In testimony whereof llavesigned. my bei, a normally Jclosed piimillgwalve also name to thisspeoioation in *elle presence of oontrollngan opening between thechamber two 'subsoi'ibiug Witnessee.

and the conduit, a spring fol' holding said COLEMAN B, HARRS.

' mining-valve closed and a removable plug VVtneSses:

for retaining said spring in position, substen- WILLIAM F. BEATON)tiallyae describeda WLLmM E. BRADLEY

